Pc With Wi Fi Problem

[ayabrea38]

Just had a new Hub from Virgin fitted after lots of problems,and everything is now working great except for my laptop.According to speed tests,it is for example giving a reading of 7Mbps,when wired it is 37 Mbps.My daughters laptop,wireless would give a reading of 35 Mbps,and wired the same as mine,so I know the problem is with my laptop.I thought I should give it a good clean and clear out,does anyone know what could be the cause of the wireless issues?
It still does everything,as in plays iplayer even in HD,and I de frag at least once a month,but wonder if it could be a hardware problem or a virus of some sort?
Any help would be appreciated.I am using windows 7 btw.
Much thanks for any ideas.

[Buenchico]

The first thing I'd try is to change the channel on the router:
http://help.virginmedia.com/system/selfservice.controller?CMD=VIEW_ARTICLE&ARTICLE_ID=2696&;CURRENT_CMD=SEARCH&CONFIGURATION=1001&PARTITION_ID=1&USERTYPE=1&LANGUAGE=en&COUNTY=us&VM_CUSTOMER_TYPE=Cable

If that didn't work I'd try resetting the TCP/IP stack on the laptop:
http://support.microsoft.com/kb/299357

[ayabrea38]

Thanks Chris,when I am feeling better (don't ask!)hopefully tomorrow I will give these a go,my brain just is not working right and I dont want to mess up.

[ayabrea38]

Quick update-changed channel,not much difference,did the reset TCP/IP stack and much better.
To be honest,I am happy with that,and as this is now our main PC I am quite happy to not put it in a shop for them to fiddle with.
It does what I want it to(thanks to Chris's advice)so for now I am going to leave well alone!
Thanks again!
Aya