coding issues with vhdl and ROM

[vhdl_rookie]

Hi,
I was wondering if anyone had any source vhdl source code, and could help
me out with this issue.

I am working on a vhdl(I am a novice at the language) project in which I
create a counter, and project it onto a monitor.

I have coded the various timers, as well as the vga generation code.

My plan was to take the timer, store the value of each digit in the on
board ROM, and then use look up takes to project this onto the screen.
However, I have been having serious problems using the look up table
function, and I cant seem to get around it. I have a source file of what
values I want within each memory address.

If anyone has any ideas or source code, it would be very much
appreciated.

Thanks in advance.

Best regards.