Graphic driver problem (by 4 users)

hi all,


This is kumar i have mercury (intel 845GL CHIPSET) Mother board i bought this one 3 years back till now i did n't get any problem but now frequently i am getting the problem with this i am getting so many problems

1: Monitor flickering more ( i changed monitor frequency rates but no use)
2: GRAPHIC drivers are not instaling some times if install it will gives errors like blue screen hang up and showing the Ialmnt5.sys error( i down loaded the latest version of my graphic drivers from intel but no use)
3:if i run in safe mode my computer is working properly when ever i instaled my graphic drivers i am getting the problems and i installed my old graphic drivers (which was come up with my mother board cd)

4: frequently system is hangup suddenly

5 : i had a doubt with my RAM that is why i purchased NEW 256 RAM Also but no use.

i am using WINDOWS XP(sp2) And Windows 2000(sp4)

i thought the problem is the on board VGA chip if it is correct plz tell me the which company VGA Card i have to buy for my mother board ,i am just a Soft ware engineer just i would like to run The development s/w like VS.NET2005,SQLSERVER205,MS OFFICE LIKE THIS means i am not bother about games just i want to run my computer perfectly
plz plz plz plz can any one help me.


thank s in advance
kumar