PS1.7 Back Office css problem?

[MerseyRay 25]

So after a very long time ive manage to get past the upgrade errors (during DbUpgrade) going from 1.6 to 1.7.2
I can't upgrade past 1.7.2 as the error returns.
I have updated the PHP version (which was too low and causing issues) and the timeouts, but updating from 1.7.2 to the latest gives the same failure during the DbUpgrade process, so im now stuck on 1.7.2

Anyhow, the 1.7.2 seems ok so far on the front end, but the back office is iffy.
Some of the B.O works fine, yet other pages dont show correctly.
For instance:
Products Page: works fine.
Dashboard: the css for the menu is garbled. ( see image)

Looking at the code for the css source:

products, stock, modules all use: /themes/new-theme/public/theme.css ( menu is fine)
all other pages:/themes/default/css/schemes/admin-theme-blue.css (menu is messed up as per image)

So 2 questions here:
Why is the update not working
Why are some pages using a different css for the menu in B.O

 

Thanks in advance

Edited May 16 by MerseyRay

[Kuba 0]

Have the same problem after update to 1.7.4  Have you fixed that?

[JoseGut 0]

I have the same issue, after upgrading to 1.7.4 most parts of Admin have a wrong design (not CSS seems to be applied to most parts of the admin). But I can see correctly displayed the Products section.

[Kuba 0]

For me overwriting files from clear installation worked 

[Tionne 0]

3 hours ago, Kuba said:

For me overwriting files from clear installation worked 

 

Which files did you overwrite? 

I'm having the same problem

[Kuba 0]

It was some time ago, but I guess all the files (as I didn't make any changes to original files) - even with the install folder (again, from what I remember, there was some installation process, which updated the database etc.). But firstly, maybe try with only the admin folder?