Why oh why would my oil pan be leaking again?

[Roa, Greg]

So sad.
I finished a bunch of work on my 86' 4kcsq.  I did a timing belt swap,
thinking that the front main seal was leaking.  It wasn't (the oil pan
gasket was), so while I had everything apart, I replaced the oil pan gasket.
Put a new gasket on, and used a bit of blue gasket sealant on it to make
sure it didn't leak.

Well, I drove it in to work yesterday, and when leaving, I noticed a bit of
oil underneath it.  Got home, and while the engine was off, I could see oil
dripping off of a few points where the oil pan meets the block.

The engine started leaking about a month or two before I changed the gasket,
so I know that something has changed.  What should I be looking for.  My
only thought is that pressure is building up in the crankcase, and forcing
the oil out, but I don't know what could be clogged to be creating that much
pressure.  I pulled a few of the hoses in the breather system, but they
didn't seem clogged.  I didn't pull all of them yet though.
Only other thing that I have noticed is that it MIGHT take a second longer
than it used to in order for the oil light to go out when starting the car
in the morning (using correct mann filter).
Any thoughts?

Thanks!
Greg Roa
Cincinnati, OH
86' 4kcsq
93' 90 CS
83' 944