Suspend mode seems to give many people grief. In Control Panel|Power Options, try setting: Power Scheme (Always On), Turn Off Monitor After (you determine), Turn Off Hard Disk (Never), System Stanby (Never).
In BIOS settings under Power: Power Management (User Define), Video Off Option (Suspend -> Off), Video Off Method (DPMS OFF), HDD Power Down (Disabled), Suspend Mode (Disabled), PWR Button < 4 Secs (Soft Off)
I use these settings and never have problems anymore with the evil suspend mode.
Fisher of men