ATI 200 Xpress prob.w/HP a1129n PC

Salutations:I DL'd an ATI Raedon Xpress 200 update from HP; hopefully to correct missing drivers @PCI simple communication controllers( PCI slot 6,Bus 2,Device 1,Func.0,Code 28) and SM Bus Controller( PCI Bus 0,Device 20,Func. 0,Code 28). The HP file was sp.26629.exe.It changed my screen by widening it and altering fonts; understood, did not like it,so I deleted the file and now I also have the yellow ? for Video Controller( Non Plug/Play-Serial Dev.Mgr. PCI Bus 1,Device 1,Func.0,Code 1). The screen resolution(?) is the same, this "rippling" scrolling is intoxicating and the PC beeps periodically own it's own and w/ scrolling, but w/no particular frequency.
PCI [email protected] PCI\VEN_11C1&DEV_048C&SUBSY
Resources 0x0000DE00-0x0000DEFF and 0x0000DF00-0x0000DF07 and in
Memory FDCFF000-FDCFF0FF
SM Bus [email protected] PCI\VEN_1002&DEV_4372&SUBSY Resource 0x00000500-
0x0000050F and in Memory FE029000-FE02A3FFF
Win xP Pro Media Ctr. 32-bit ServPk 3v3264 FireFox3.6.13 Can not use Windows Updates due to type of installation
Thanks