hi to all DOTA fans out there

i have a problem and it only happens with DOTA

My (brother's) laptop used to be able to play Warcraft3/dota smoothly but now "in game" lags like mad, its like it jerks and jerks...all settings are low

but when starting windows, entering Frozen thorne menu, loading DOTA no lag and very fast. Even when playing build base map, it lags...why ahh?

the Laptop is DELL inspiron 600m, the specs are :

Pentium 4 1.4GHz
1gb RAM
ATI RADEON 9000

i scan with LAVASOFT and deleted everything and it still lags

dawn of war dark crusade runs fine with medium settings

Hey guys out there, i found out the problem

turns out that its gotta do with the graphics...i dunno the process but u need copy the FT.exe file on ur desktop, go properties, at the directory add -openGL

for example

"D:\GAMES ONLY\Warcraft 3\Warcraft III\Frozen Throne.exe -openGL"

then only ingame smooth

so problem solved

thanx for ur suggestions anyways