Web Stats Question

i have a site that i moved from straight html on linux to asp/database on windows. i launched it last january 2003. the first month (january), i noticed a significant difference in visits, probably 30% less. but the page views were up by maybe 15%.

here's my question, would going to asp change the way the site(or server) sees a visitor? my client is slightly freeked by the change and i don't really know what to tell him. the fact that page views are up since going to asp has helped some.

but the drop in visits was right when the change to asp was made. in december (right before the launch of the new site), the html pages were reading the the same amount of visitors.

can anyone shed any light on the matter? or did we really just loose some visitors?