here is anyone have any radeon X600/300/550 for some test?
may be even other Xxxx or X1xxx card also have this problem...
i found that Catalyst 6.2 under 98SE (may be also other 9x) have issue with these cards - any using D3D acceleration will halting app and often OS. even just DXDiag D3D test will fails.
issue can be solved by replacement ati2cqag.dll to older, from Catalyst 5.9.
can u check it?