Planning routes in MyDrive

I have recently bought the Truck 6000, first few times I used My Drive to plan routes etc no problem , I would open up My Drive on Google Chrome ,click log on and the box came up to enter log in details ,then yesterday when I clicked log on the box came up blank and then disappears, repeat click and the same keeps happening , so I tried it on Firefox and got the same results , so I am not able to log in and use My drive ,
I have tried closing both browsers and restarting and the same with my laptop ,to no avail
Anyone else had the problem?

Baza