Hi Haighy,
Power levels look to be fine although it does show some collisions.
I see from the posting you have a Terajet Modem and as long as you have no router in between and it is a direct connection maybe worth checking the setting of your Ethernet card.
To do this goto start/settings/control panel and double click network and dial up connections and look for an icon that says Local Area Connection and right click it and choose properties.
You should see something that says Ethernet and click on the configure option and choose the advanced tab.
Have a look in the property box for either something that say half or semi duplex ot 10 base t.
If there is a choice of selecting 10 or 100 with half duplex choose 10 as this is the optimal setting for Ethernet cards using the Terajet Modems.
After selecting then click on ok and ok and a restart may be required.
The above is not going to solve all your problems but should reduce the Ethernet collisions.
You say you have read the other thread and tried the Proxies etc and this makes little difference?
Also you mention that you getting slow updates to pages and if this is the case then it could be the transparent cache and you can by pass this by entering ?1234 at the
www.address being typed ie for google it would
www.google?1234 which will by pass the cache and force it to look for the latest page alternativelt pressing control and F5 will refresh this.
Anyhows mull over the above and let us know and post back with specific examples if you can of the pages causing the problems or is just browsing in general.
A couple of other pointers would be to empty out the cache by clearing the temporary internet files by choosing from your browser tools/options/then delete temp internet files and also maybe running Adaware to eliminate any spyware etc.
Hope it helps.