By running both NOD32 and AVG8 at the same time this can cause serious system performance issues and incompatibilities. You need to uninstall one of them.
In general, you must be careful not to run real-time background tools that duplicate what another tool does. Spyware Doctor, although an excellent tool, may not like the anti-malware component of AVG8.
POST A REVISED HIJACKTHIS LOG for review:- Reboot.
- Post a new HijackThis log.
- Provide any feedback commentary as appropriate - how things are now behaving: any new or remaining apparent issues.