🚀 go-pugleaf

Just the other day I bought the MacSnap 548 from Dove Computer Corp. I 
installed it taking all the necessary precautions (grounding, one hand
in pocket, etc), and on powerup my former 512KE, now a 2048K, boots ok.
Problems start when I try to use the memory, it seems. 'About Finder...'
tells me I've got 2048K. Great, I think, let's install a 1Meg RAMdisk
with the software Dove supplies in the package. Works fine, I have a 
1Meg RAMdisk, BUT, when I try to copy something onto it, >blooey!<. My
Mac 'freezes' the cursor, and not even a push on the Interrupt-button
makes any difference. Reboot. Even worse, not only does the RAMdisk work
badly, but some applications that formerly runnes just fine, now crashes.
F.i. File Maker, ZYX Prolog, LPA Prolog (whenever I try to expand
evaluation space), MultiFinder. Programs that run OK are Coral CLisP,
MS Word 3.01 and Lightspeed C, among others.
 
Can anybody out there *please* give me a hint to what is wrong? The
expansion was 389$ out my student wallet, and thats enough to by me
food for 3 months. I'd hate to think it is wasted money.