Help! cant change resolutions! :(

Hankysmoo

Golden Member
May 27, 2000
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This is quite a dilemma which is driving me crazy. I wanted to install a agp Creative Tnt card on my friends computer who is currently using a STB riva128. Thus, I properly took out his video card and put mine in. Everything was fine until it came to installing the drivers. I downloaded det 2 5.22 nvidia drivers, 6.31 det3 drivers, and the creative 6.34 drivers and tried installing them. All of them installed fine but the darn thing won't let me change resolutions! His display is always set to 16colors 640x480 :(. When I check in device manager, the Nvidia TNT always has a yellow exclamation point and it says its installed but not properly. When I click on driver details, it says VDD.vxd not found. I guess this is the problem but I dont know how to fix it. The crazy thing is that I've installed this video card on his computer b4 and it worked fine. Thus, I thought I would just reinstall his old video card. Now his old video card which was working perfectly fine 30 mins b4 wont change resolutions as well. Thus, things were really bad now. So, I then decided to reformat his computer and start fresh with windows 98SE, hoping it would solve everything. Well, it didn't. The drivers would always install but when it came time to changing resolutions, it would always just stay at 16 colors at 640x480. I've changed/upgraded video cards many times and reformatted quite a lot and never came across this problem. Since both his video card and my tnt card now can't change resolutions, I'm thinking the Agp slot in his 440LX motherboard might be permanently damaged somehow. Could this be it? I sure hope not though, as I've tried everything I can think of and consider myself pretty experienced with this kind of stuff. When booting up, I notice that his video card has an IRQ of NA. Is this right? Maybe thats the problem but the only things he has in his computer is an ISA SB AWE64, Zoom external modem, Toshiba CDROM, and 6.4gig hd. Does IRQ's have anything to do with this? What could be wrong? I am open to any suggestions and would really like to fix my friends computer. Thanks.

Since I can't think of anything, the next thing I will try to do is install windows 2000 on his computer, this a good idea?
 

IsOs

Diamond Member
Oct 9, 1999
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You said you reformatted the harddrive and reinstall Windows 98SE?

That should have corrected the problem. Now if you did not reformat the drive and simply reinstall Windows 98SE, they you'll have the same problem.

When you removed the card, you did not uninstall the driver. This sometimes will conflict with the new settings that the computer will assign to the replacement video card.

 

AC

Senior member
Nov 2, 1999
616
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monitor driver is probably incorrect

win determines colors and res based on monitor type and adapter type
 

Moonbender

Golden Member
Oct 19, 2000
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Sounds like Windows cannot really recognise the card(s). 640*480 at 16 colours is just what the standard emergency VGA driver can do.

If you think the AGP slot might be damaged, the logical way to find out is to try using a PCI video card, if you have one handy. An old one will do, it's just to test after all.
That yellow exclamation mark is something to look into ... I cannot find a VDD.VXD on my boot drive, however I am not using a Nvidia card.

I don't know if either of the cards are supposed to use an IRQ, but my Banshee doesn't use one and neither does my aged S3 Trio. I'd guess it's normal behaviour for graphic cards.

Are you sure there is no old driver installed? From what I read in driver readme.txts, you are supposed to delete the old VGA driver before installing the new one - however you probably tried this.

Edit: Just saw in the cross-post copy of this thread (I just love it when people do that!) that TNT cards are supposed to have an IRQ assigned.