stanlick,
Sorry that you are seeing this issue. It might be a corrupt or an incomplete installation.
1. How did you install MyEclipse ? Is it using All-In-One installer or Pulse ?
2. If you have downloaded the installer, then rerun the installer. You will see options to Repair or Reinstall or a new location. Choose anyone and check if it resolves your issue.
3. If you installed ME 10.1 using Pulse, then open the Pulse explorer, right click on the MyEclipse 10.1 listed under the My Profiles section and choose the ‘Reinstall then Run’.
Let us know how it works for you.