XAMPP Errors on New Machine

[NEX2NUN]

I have just finished an install of XAMPP 1.7 on a new machine running Windows XP Professional. This was an upgrade from the previous version due to a computer crash. Now when running my PHP applications we are receiving the following errors. Any insight on why this is occurring and what I can do to resolve this would be very much appreciated. Thank you.

Warning: session_start() [function.session-start]: open(C:\xampp\tmp\sess_ee91765bbfebae90f542a09e4525f7fa, O_RDWR) failed: Permission denied (13) in C:\xampp\htdocs\survey\view_all_watersheds_owners.php on line 4

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at C:\xampp\htdocs\survey\view_all_watersheds_owners.php:4) in C:\xampp\htdocs\survey\view_all_watersheds_owners.php on line 4

Warning: Cannot modify header information - headers already sent by (output started at C:\xampp\htdocs\survey\view_all_watersheds_owners.php:4) in C:\xampp\htdocs\survey\view_all_watersheds_owners.php on line 43

Warning: Unknown: open(C:\xampp\tmp\sess_ee91765bbfebae90f542a09e4525f7fa, O_RDWR) failed: Permission denied (13) in Unknown on line 0

Warning: Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (C:\xampp\tmp) in Unknown on line 0

[Wiedmann]

Delete the files in "C:\xampp\tmp\" and verify your security settings for this directory.

[NEX2NUN]

Would be okay to give this folder Full Control to Everyone?

[Wiedmann]

"Everyone" should always work