Routing problem, some websites not accessible

Hi,

Having strange problem with Mac Pro (early 2008) accessing Internet over wifi (and otherwise as well). Most sites work fine, trouble is with www.gmail.com, http://picasa.google.com/ and www.youtube.com. Gmail and Picassa give error: 'Firefox can't establish a connection to the server at picasa.google.com.'. e.g. www.google.com works just fine like most sites. Youtube connects but loses most images and videos are not shown.
I have Macbook Pro running same 10.5.2 Leopard that uses same wireless router to connect to Internet and Gmail, Picassa and Youtube work just fine.

Troubleshoothing done so far:
-Reboot of everything including router, no help.
-Installed new 3.0 Firefox, no help, also Safari fails same way with above sites
-Connected to ISP using ethernet cable directly to router, no help
-Run Onyx and cleaned all caches, helped a bit, now www.gmail.com can be pinged, before it show 'no route to host'. Also traceroute completes. But still 'Safari can’t open the page “ http://mail.google.com/mail/?hl=fi&tab=wm” because it could not connect to the server “mail.google.com”.'
- sudo route flush, completes with error and kills some daemon so afterward no connection anymore but needs reboot to get daemon up.

ping wwww.gmail.com on Mac Pro
PING wwww.gmail.com (208.67.219.132): 56 data bytes
64 bytes from 208.67.219.132: icmp_seq=0 ttl=49 time=300.638 ms
64 bytes from 208.67.219.132: icmp_seq=1 ttl=49 time=289.377 ms


Traceroute on Mac Pro:
tero-macpro:~ Tero$ traceroute wwww.gmail.com
traceroute to wwww.gmail.com (208.67.219.132), 64 hops max, 40 byte packets
1 192.168.1.1 (192.168.1.1) 1.252 ms 0.673 ms 0.826 ms
2 91.74.51.1 (91.74.51.1) 0.999 ms 0.973 ms 0.850 ms
3 10.25.88.13 (10.25.88.13) 1.495 ms 3.088 ms 1.424 ms
4 10.25.95.2 (10.25.95.2) 1.223 ms 1.149 ms 1.108 ms
5 10.25.31.17 (10.25.31.17) 1.169 ms 1.077 ms 1.059 ms
6 10.0.7.2 (10.0.7.2) 2.701 ms 3.021 ms 3.432 ms
7 80.227.0.78 (80.227.0.78) 4.040 ms 3.509 ms 3.781 ms
8 80.227.0.65 (80.227.0.65) 3.730 ms 3.373 ms 3.046 ms
9 * * *
10 * * *
11 * * *
12 * * *
13 195.66.226.185 (195.66.226.185) 149.822 ms 150.803 ms 149.509 ms
14 te2-1.3493.mpd02.***01.atlas.cogentco.com (130.117.2.18) 139.322 ms te7-3.mpd02.***01.atlas.cogentco.com (130.117.2.26) 149.686 ms 130.117.3.226 (130.117.3.226) 149.397 ms
15 te4-4.ccr02.bos01.atlas.cogentco.com (130.117.0.46) 237.411 ms 226.090 ms *
16 te3-2.ccr02.ord01.atlas.cogentco.com (154.54.6.182) 259.420 ms * *
17 te9-4.ccr02.mci01.atlas.cogentco.com (154.54.6.214) 260.825 ms te4-3.ccr02.mci01.atlas.cogentco.com (154.54.6.201) 269.266 ms *
18 te2-2.ccr02.sfo01.atlas.cogentco.com (154.54.6.42) 294.322 ms 304.292 ms 294.355 ms
19 te4-4.mpd01.sjc04.atlas.cogentco.com (154.54.7.174) 304.700 ms te2-4.mpd01.sfo01.atlas.cogentco.com (154.54.24.105) 308.892 ms te4-4.mpd01.sjc04.atlas.cogentco.com (154.54.7.174) 304.829 ms
20 vl3490.mpd01.sjc04.atlas.cogentco.com (154.54.2.166) 310.067 ms 38.104.140.46 (38.104.140.46) 286.911 ms 296.650 ms
21 * 38.104.140.46 (38.104.140.46) 290.994 ms *
22 * * *
23 * * *
24 * * *
25 * * *
26 * * *
27 * * *
28 * * *
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64 * * *


With Macbook Pro that can access www.gmail.com. traceroute:
tero-macbookpro:~ teroahonen$ traceroute www.gmail.com
traceroute: Warning: www.gmail.com has multiple addresses; using 74.125.19.83
traceroute to googlemail.l.google.com (74.125.19.83), 64 hops max, 40
byte packets
1 192.168.1.1 (192.168.1.1) 1.447 ms 0.857 ms 0.880 ms
2 91.74.51.1 (91.74.51.1) 1.191 ms 1.155 ms 1.132 ms
3 10.25.88.13 (10.25.88.13) 2.154 ms 1.584 ms 1.588 ms
4 10.25.95.2 (10.25.95.2) 1.507 ms 1.447 ms 1.334 ms
5 10.25.31.17 (10.25.31.17) 1.374 ms 1.384 ms 1.301 ms
6 10.0.7.1 (10.0.7.1) 2.397 ms 2.183 ms 1.930 ms
7 80.227.0.234 (80.227.0.234) 3.863 ms 3.992 ms 3.730 ms
8 80.227.0.217 (80.227.0.217) 4.692 ms 3.984 ms 3.895 ms
9 195.229.27.9 (195.229.27.9) 6.597 ms * 6.399 ms
10 csk012.emirates.net.ae (195.229.31.12) 15.391 ms 14.768 ms 14.269 ms
11 195.229.1.206 (195.229.1.206) 133.584 ms 133.576 ms 133.402 ms
12 de-cix10.net.google.com (80.81.192.108) 189.684 ms 149.807 ms 165.401 ms
13 209.85.255.172 (209.85.255.172) 141.587 ms 141.543 ms
209.85.255.170 (209.85.255.170) 140.793 ms
14 72.14.233.104 (72.14.233.104) 143.913 ms 72.14.232.105
(72.14.232.105) 145.197 ms 144.879 ms
15 72.14.236.220 (72.14.236.220) 210.696 ms 209.352 ms 209.917 ms
16 209.85.248.216 (209.85.248.216) 222.078 ms 214.374 ms 214.615 ms
17 216.239.48.69 (216.239.48.69) 231.131 ms 229.650 ms 229.012 ms
18 72.14.239.136 (72.14.239.136) 229.673 ms 229.069 ms 230.865 ms
19 66.249.95.213 (66.249.95.213) 283.888 ms 285.395 ms 287.365 ms
20 209.85.251.34 (209.85.251.34) 285.576 ms 284.834 ms 288.219 ms
21 209.85.251.94 (209.85.251.94) 285.547 ms 294.946 ms 289.840 ms
22 cf-in-f83.google.com (74.125.19.83) 287.743 ms 289.068 ms 289.342 ms

Ideas very welcome.
I have also a MacMini connected with cable to router running Tiger with no troubles in connection to Internet as well as IBM laptop with XP and no problems using wifi.

Thanks,

--
Tero