Computer Slow To Start

as the title says my computer takes forever to start. It is a new installation of Windows XP Home as supplied by my Laptop Manufacturer Fujitsu Siemens. I have all the recent updates but this hasn't helped. From day one of the installation it has taken around 2 minutes to start. I have checked for Spyware with Adaware and Spybot and Destroy. I have ran Trend Housecall Anti-Virus online scanner and Panda Online Anti-Virus and nothing. My resident Anti-Virus software is Nod32 and it has detected nothing.I have followed so many guides to try and speed things up but it hasnt done anything. The only things starting up are the virus scanner, freepops(for my Hotmail account) and my synaptics keypad. I have tried disabling them all and its just as slow. I have turned off services that certain websites assure me I do not need and nothing. I have one Unsigned Driver for my WLAN Card but the Supplier doesnt have a signed driver available. It's a Sitecom WL-517 Wireless Broadband Kit PCMCIA adapter. I have uninstalled the device to see if this might be the problem but it still doesnt effect startup time.

I downloaded Bootvis to look at where the time is going and what it shows. It seems to spend an age loading drivers and looking at the Prefetch files this accounts for about 40 seconds. Then it spends another 45 seconds at Windows Logon and Services. From here I have a gap of about 45 seconds where it does nothing it just pauses for another 45 seconds. I have ran Bootvis so that it optimised the system but this did nothing. Having read further I discovered that Windows XP more or less does a BootVis optimisation at every startup and so this would have done nothing anyway. Because of this I ran the Windows XP Home Cd and repaired the Installation so it should be relatively fresh.I must say I am at a loss as to where the problem is.