Thanks Valis, I can get into windows but its touch and go on how long it lasts (I've left the PC off and then can get back in okay). It started crashing when unattended but I've found the following in the event viewer
Event Type: Warning
Event Source: Dhcp
Event Category: None
Event ID: 1003
Date: 09/03/2007
Time: 05:06:34
User: N/A
Computer: HOWARD-C1AEEC5D
Description:
Your computer was not able to renew its address from the network (from the DHCP Server) for the Network Card with network address 0010A70D56DC. The following error occurred:
The operation was canceled by the user. . Your computer will continue to try and obtain an address on its own from the network address (DHCP) server.
For more information, see Help and Support Center at
Events And Errors Message Center: Basic Search.
Data:
0000: c7 04 00 00 Ç...
Event Type: Error
Event Source: Dhcp
Event Category: None
Event ID: 1002
Date: 09/03/2007
Time: 05:06:41
User: N/A
Computer: HOWARD-C1AEEC5D
Description:
The IP address lease 192.168.1.36 for the Network Card with network address 0010A70D56DC has been denied by the DHCP server 192.168.1.1 (The DHCP Server sent a DHCPNACK message).
For more information, see Help and Support Center at
Events And Errors Message Center: Basic Search.
Under applications I found the following (which from hear say maybe when the problem occurred)
Event Type: Information
Event Source: Avg7UpdSvc
Event Category: None
Event ID: 1
Date: 09/03/2007
Time: 07:58:01
User: N/A
Computer: HOWARD-C1AEEC5D
Description:
Service started
Event Type: Information
Event Source: AVGEMS
Event Category: None
Event ID: 1
Date: 09/03/2007
Time: 07:58:06
User: N/A
Computer: HOWARD-C1AEEC5D
Description:
Service started
Event Type: Information
Event Source: SecurityCenter
Event Category: None
Event ID: 1800
Date: 09/03/2007
Time: 07:58:11
User: N/A
Computer: HOWARD-C1AEEC5D
Description:
The Windows Security Center Service has started.
For more information, see Help and Support Center at
Events And Errors Message Center: Basic Search.
There are also lots of info messages under System for time re: service control manager. Do you want these?