Google Page Rank Gone from 4 to 0

Lost google page rank

[jojo]

Help!

The page rank for my site has dropped from 4 to 0.
<snip>

We had problems with our server last weekend (20/21 Jan) and the site could not be reached for 2 days. Would Google drop the page rank for that and would it come in to effect that quickly?

Is there anything I could do to get it back?

Thanks Jo

[edited by: engine at 4:50 pm (utc) on Jan. 24, 2007]
[edit reason] No urls, thanks. See TOS [webmasterworld.com] [/edit]