Dr Blip,
I have been experiencing a "hang" problem at start up. All goes well to the desk top, my anti-virus (ESET NOD32) loads, but then most of the time the system just hangs. No response from any hot spot, and cursor turns into large hour glass if moved over task bar. Only thing to do is hard kill with power button and restart. I ran PC-Doctor from the Rescue and Recovery partition on my Lenovo R61i. All tests passed, except for the following: CPU:multicore test...misconfigured........and SMBIOS: Standard Test...Failed. There was no further info given as to explain what this means or how to remedy the problem. Before the test I disconnected my Wifi because I needed to connect with an ethernet cable. I had suspected my Wifi as the problem because when I disconnected it (in my office) it booted 3 times with no problem. I rolled back the driver and thought I resolved the issue, but then I had problems on the web, not being able to connect to certain sites. Can you shed some light, please? I'm thinking I should try a restore back to an earlier time frame.