excel won't let me delete one of my sheets?

When I type a number (i.e. 6) into a cell it comes up as 600.  I've checked
the formatting and it is set to general.  If I type 6.00 it comes up 6.00.  
If I type 6. it comes up 600 again.
Is this a virus or something that changed in my settings.  Please help.  I

Help!  my spreadsheet seems to be locked that when I enter a cell the mouse
will only highlight and drag to other cells.  I can't enter information, or
exit excel.

I am working in a large wookbook that has numerous sheet with charts.  When I
refresh the source data on new charts, I get the Error Message box:  No more
new fonts can be applied to this wookbook?  I am not sure why, and how to
eliminate this message?  Does anyone know.

I am running Excel 2002 in Windows 2000.  I tried to program a mortgage
payment using =PMT(Rate/12,Term,Loan Amount) ...but it doesn’t give me the
correct answer.  I have MANY older excel files using the same formula that I
imported to my computer, and they all work fine.  It's ...

i have one excel data sheet with few entries but the size of the
excel document is about 33MB (ususaly i think is about 200 Kb)
what may be the cause

I am trying to Import data from another Excel spreadsheet but I get an error
"ODBC Excel Driver Failed:  could not decrypt file".  The spreadsheet that I
am trying to import is not encrypted.  How can I fix this problem.

I build a number of web queries obtaining data from MSN Money (CNBC).  Stock
quotes, etc.  The queries worked fine until MSN recently launched site
changes.  Now I receive the error message, "The Internet site reports that a
connection was established but the data is not ...

The cursor on my worksheet has frozen, so when I move the arrow
up/down/sideways, the page moves instead of the cursor.  
Please help.
Regards

When I type English text names, an accent is added at the end of certain
names, even thought it shouldn't.

I deleted a Macro, but warning notice appears each time when I open the
workbook. When I open a macro window it is empty. May somebody knows how to
fix it?

I am running my file on excel 2003. I have 24 similar sheet in this workbook
which each sheet contains a table and 10 charts.The file size is 1920kB. The
above error message shows when i tried to change the source data of each
chart n Excel shuts itself down.I have tried saving ...

When I 'print preview' (or print) a worksheet in Excel 2003, the orientation
is portrait.  If I go to page setup, the landscape radio button is on.  When
I click the portrait radio button, the orientation changes to landscape (and
vice versa).  I've copied the worksheet to a new ...

Creating a basic Pivot table report (5 row items, 2 column items, 2 data
items) and getting the following error:
Microsoft Excel cannot make this change because there are too man row or
column items.  Drag at least one row or column field off the pivot table

After installing the latest updates, the vertical gridlines print darker and
the horizontal gridlines are very light.  I have an HP Laserjet 4 Plus
printer.