Thanks for the reply Marc

Here are the results of the traceroute:

C:\>tracert image.rcuniverse.com

Tracing route to image.rcuniverse.com [207.44.250.58]
over a maximum of 30 hops:

1 3 ms 2 ms 2 ms cpc2-warw5-3-0-cust147.brhm.cable.ntl.com [81.109.81.147]
2 12 ms 10 ms 7 ms 10.156.135.254
3 13 ms 10 ms 13 ms brhm-t2cam1-a-v113.inet.ntl.com [213.106.228.73]
4 32 ms 520 ms 54 ms brhm-t2core-a-ge-wan64.inet.ntl.com [213.106.231.50]
5 11 ms 11 ms 10 ms bir-bb-a-so-700-0.inet.ntl.com [213.105.174.105]
6 12 ms 9 ms 11 ms bir-bb-b-ae0-0.inet.ntl.com [62.253.185.154]
7 19 ms 25 ms 25 ms nth-bb-a-so-300-0.inet.ntl.com [62.253.185.105]
8 30 ms 30 ms 34 ms fran-ic-1-as0-0.inet.ntl.com [213.105.174.86]
9 30 ms 29 ms 29 ms po1-0.core01.fra03.atlas.cogentco.com [80.81.192.63]
10 36 ms 34 ms 33 ms p15-0.core02.par02.atlas.cogentco.com [130.117.0.18]
11 41 ms 34 ms 33 ms p12-0.core01.par01.atlas.cogentco.com [130.117.1.230]
12 115 ms 113 ms 112 ms p14-0.core02.dca01.atlas.cogentco.com [66.28.4.206]
13 115 ms 116 ms 112 ms p15-0.core01.dca01.atlas.cogentco.com [66.28.4.21]
14 149 ms 157 ms 355 ms p3-0.core01.iah01.atlas.cogentco.com [66.28.4.90]
15 157 ms 159 ms 159 ms everyonesinternet.demarc.cogentco.com [38.112.12.178]
16 157 ms 156 ms 156 ms ivhou-207-218-245-28.ev1.net [207.218.245.28]
17 192 ms 157 ms 155 ms ivhou-207-218-245-114.ev1.net [207.218.245.114]
18 366 ms 160 ms 349 ms ns7.itechsolve.com [207.44.250.58]

Trace complete.

I'm using Mozilla 1.5, but have the same problem if I use IE 6.

I just spent the past week in Germany, and found I could access the site without problems via my hotel's broadband connection using the same laptop I use at home (and have a problem with). So, I'm pretty convinced it's not an issue with PC / browser.

Thanks for your help,
Phil