I am not able to see the list of symbols and also the full name in the list - they are there but are not visible. I can see the rows in the watchlists but they are blank. But if I click a row, the chart is displayed but I would not know before clicking the row which symbol chart will be displayed. This seems to be a small issue but I am not able to find the solution. Thanks
You probably resized "Symbol" column down to zero size. Move your mouse over LEFT margin of "full name" column and you should see the divider that allows to drag the first "Symbol" column back to original, non-zero, size.
Thank you Tomasz. Indeed that was the case. So silly of me not to have noticed.