frustrated with leaking

[asherah]

I have had this 92 gallon glass oceanic reef ready corner tank for months now and I can't even use it ! I'm at my wits end wit this thing !
I've been trying to seal it over and over but it still leaks from the underneath the overflow pipes. =(
I've tried sealing it on the inside of the overflow, I've tried sealing it from underneath where the water drips out...but it still leaks !
I've used 2 tubes of silicone on this thing.
I'm so frustrated!

If you've got any advice please dish it up because I'm at a loss here. =(

Thank you
asherah