Thanks again for the help guys (sorry couldn't get back into the site again last night).
Tried both the suggestions, but still having problems.
One site I can't get into this morning is Amazon.co.uk.
Tried one of those tracert things again. Does this still look fine?
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:\Users\Mews>Tracert
www.amazon.co.uk
Tracing route to
www.amazon.co.uk [178.236.6.39]
over a maximum of 30 hops:
1 1 ms <1 ms <1 ms 192.168.2.1
2 10 ms 10 ms 21 ms 217.47.211.122
3 * * * Request timed out.
4 * * * Request timed out.
5 * * * Request timed out.
6 * * * Request timed out.
7 22 ms 23 ms 23 ms 87.237.20.244
8 27 ms 28 ms 27 ms bundle-ether1.lontr1.London.opentransit.net [193
.251.255.101]
9 23 ms 23 ms 23 ms telia.GW.opentransit.net [193.251.251.22]
10 24 ms 24 ms 23 ms ldn-bb1-link.telia.net [80.91.249.179]
11 36 ms 36 ms 36 ms dln-b2-link.telia.net [213.155.133.1]
12 * * * Request timed out.
13 * * * Request timed out.
14 * * * Request timed out.
15 * * * Request timed out.
16 * * * Request timed out.
17 * * * Request timed out.
18 * * * Request timed out.
19 * * * Request timed out.
20 * * * Request timed out.
21 * * * Request timed out.
22 * * * Request timed out.
23 * * * Request timed out.
24 * * * Request timed out.
25 * * * Request timed out.
26 * * * Request timed out.
27 * * * Request timed out.
28 * * * Request timed out.
29 * * * Request timed out.
30 * * * Request timed out.
Trace complete.
C:\Users\Mews>Tracert
www.amazon.co.uk