The reason the prblem is weird is because I have more than enough memory (80 GB) and intel centrino processor. In relation to a particular game (even the free 'miniclips' games run slowly), the best example of the problem is 'Splinter Cell, chaos theory.'
The game itself will run fine for a period, but then it slows down to an annoying rate. the graphics remain good, but the gameplay is very jerky and slow. With splinter cell, if I switch to the infared vision mode, the game play picks up to normal speed again. it seems to be battling with the high resolution graphics - but only every five minutes or so!
In addition, we have just installed BT Broadband. It works fine, but certain downloads no longer take place we keep getting the error message 'unable to connect' and get asked to check our connection. We have followed the BT manual to the letter, but still battle with this. This is probaly best explained with reference to 'widgets'. We can downloads widgets, such as stock ticker, time etc. but anyone that requires internet access (eg stck ticker) will not be able to connect EVEN though we are online at the time!!!!