You have bad cable or connection somewhere.
Or too much signal loss because of the conversions.
Or you have set the computer to a resolution that is higher than the monitor supports. (1680x1050 is the maximum for this monitor according to Google. That is definitively not the native resolution of your Mac.)
Technically there should be no issue.
DVI cables are always compatible as long as the connectors fit. The number of pins are different between various DVI cables, but as long as the connectors fit it should be compatible.
2 exceptions to this:
- If you have a analogue device sometimes it will have a DVI-A+D input. In that case you can supply a DVI-D (digital only) signal to it. That will obviously not work.
- In some cases when using converter cables/plugs the computer will not properly identify the capabilites of the monitor and will attempt to use a too high resolution/frequency (my best guess is you have run into this issue.)
I would suggest you try with a different cable. Or converter.