Any card should be better than the onboard p.o.s. you are using right now, i had an intel card for years (i740) and had about the same problems you have, the pics you posted show the card running out of texture memory, see if there is any fix in the bios for this, maybe a setting, you could also update "flash" your bios & see if this fixes the prob.
If going for a newer card remember: 3dfx IS OUT OF BUSSINESS, they are great cards , but driver support for these are nonexistant. Try an nvidia chipset, a tnt or mx card won't set u back much $$$. --Some of these cards can be bought at ebay or as oem replacement parts for very little cash.
If going for a newer card remember: 3dfx IS OUT OF BUSSINESS, they are great cards , but driver support for these are nonexistant. Try an nvidia chipset, a tnt or mx card won't set u back much $$$. --Some of these cards can be bought at ebay or as oem replacement parts for very little cash.