Is this disqualifying searches?

[kapeh12]

I've noticed when I do a search, my counter increments as I'd expect.  When I get the results, I'll select a link to view the information, but if the site doesn't contain the information I'm looking for, I hit the back button on the browser to get back to the original search result list to choose another link.  When I do this, I see a popup that said I executed an illegal search (but I didn't "re-do" the search from the toolbar, I just backed up from a site to the original list).  Is using the back button on the browser confusing the toolbar search thinking I'm duplicating searches when I'm not - thus I'm causing my searches to be deemed "illegal" and not credit?

Thought I'd ask as this is how I typically use search results for whatever I'm hunting - go back and forth between the results until I find what I'm seeking.  If the toolbar invalidates my original search due to this behavior, then I guess I won't be counting on searches for income (I don't search that much anyway so no big deal).

But I am curious if maybe that might be the reason why I have not been credited - and if so, is this expected behavior (to disqualify the original search as one is trying to evaluate more than one of the search results)?

I know I had problems with another site's toolbar search not crediting me for searches either, and it appears both FC and the other site were using similar GPT searching tools, so it made me wonder if the reason was due to how I'm using the results...

Thoughts?