I had an issue on an earlier site build where entries containing a Matrix field with numbers of rows in excess of about 60 wouldn't save. The Matrix field in question contained two Assets fields, a couple of text fields and a PT Pill. I thought I had traced the issue to a problem in upgrading from Assets 1 to 2, and for various reasons ended up downgrading to 1 again as a solution.
I've now run into the same issue again on a brand new site, with fields exactly as described above, using Assets 2. It's for a photographic portfolio - the like of which I've built several times before using Assets 1 and never had this problem. What happens is that when I try to save the entry, when having gone above a certain number of rows, the browser load bar sticks, and eventually (after several minutes) I get an internal server error message.
There's no issue on entries with lower numbers of rows, and there's no issue with opening the entry for editing, only when saving.
Any ideas?