Couldn't resume after Standby

[lahratla]

I recently bought a PC with the following configuration:

1. Athlon 64 3000+ (939) CPU
2. 256x2 400MHz DDR RAM
3. 80 GB SATA HDD
4. MSI-RS480 (IGP) Mobo
5. Combo and FDD
6. 17" Flat CRT
7. WinXP+SP2

Earlier, my PC could resume properly after standby. But recently, my Monitor couldn't display the Welcome Screen or anything on resume and I have to manually restart the PC.

Please help.

[praka123]

mobo's got problm.get it chkd