Trouble on Step 2

[sdinvestor2k]

PHP Version OK (ver 4.3.11 )
I keep getting these two errors and can't find anything on what to do about them. Anyone know what I need to do?

MySQL Database OK

MB Strings Module Not found: SugarCRM will not be able to process multi-byte characters. This will impact receiving emails in character sets other than UTF-8.

XML Parsing OK
PHP Safe Mode Turned Off OK
PHP Allow Call Time Pass Reference Turned Off Allow Call Time Pass Reference is On (this should be set to Off in php.ini)
PHP Memory Limit >= 32M OK (Unlimited)
Writable SugarCRM Configuration File (config.php) OK
Writable Custom Directory OK
Writable Modules Sub-Directories and Files OK
Writable Data Sub-Directories OK
Writable Cache Sub-Directories OK
Writable Session Save Path (/tmp) OK
Optional Components Status

IMAP Module Not found: InboundEmail and Campaigns (Email) require the IMAP libraries. Neither will be functional.

cURL Module OK
ZLIB Compression Module OK

[egork]

Have you checked in php.ini whether you have those modules included?
Have you checked whether your php.ini is the one that is being picked up by SugarCRM environment?