What causes this?

@dotsey (98)
November 26, 2007 5:34am CST
I am an adsense publisher, but I have discovered that sometimes google ads don't appear on my web pages(that is, on some computers). The google ads source codes are in my web pages. Now these other computers use XP, 98, etc and Mozilla, Explorer. What is the cause of this?
1 response
@scorpio16 (1707)
• India
28 Nov 07
The same problem is being faced my me too. I am looking an answer to this problem. I have tries few alternatives to sort out this problem but in vain.