MFD12 will not display tracks

In 2014 my MFD12 displayed my track from Vancouver to San Diego. Since then it has not displayed any tracks. I have reset to default values and still no track displayed as I sail. I also cannot recall my Vancouver to San Diego track. If I click on Open Saved Tracks I get a box with 4 tracks listed, including the Van-SD track, but clicking on the file using the roto knob does nothing. There is no mouse cursor displayed so I only have the roto knob to select.
Any ideas why I see no tracks? I would really like to see my inbound tracks into anchorages so that I can use them when leaving.
Thanks.

Try holding the rotokey in until you get full functionality then choose overlay..then tracks.

Thanks Johnny but I must sheepishly admit I had forgotten that the rotokey also has a position for Track and "display tracks" was turned off. Turning it on brought up my track. Guess I should have gone back to the manual........

Glad to here it got resolved. I find that even I must breakdown and read the book time to time. Well done.